能四年念完大学的不很多。这个网页告诉你各个学校四年的毕业率。你可以看到，很多学校实在不应该挂大学的牌子，学生也不该来上四年制大学，不如去念个职业学校去工作。美国教育系统浪费太多。
这个图，连六年都念不完的大有人在。有很多人是不知道自己该干什么和能干什么，结果乱念，念到半截又改。女儿有朋友，她都毕业工作三年了，那女孩还没念完，中间改行了。
当然还有因为经济问题，家庭问题，等等。出身家庭环境差的孩子不容易。
IVY LEAGURE学校生源质量高，学校也有足够的经济资助，基本按时毕业。
A Comprehensive Breakdown of Ivy League Graduation Rates, 2019-2021
| 4-Year Graduation Rate (%) | 6-Year Graduation Rate (%) | |||||
| Class of 2019 | Class of 2020 | Class of 2021 | Class of 2019 | Class of 2020 | Class of 2021 | |
| Brown University | 86.5% | 85.4% | 80.2% | 95.8% | 95% | 95.7% |
| Columbia University | 87.1% | 89% | Not Yet Published | 95% | 95% | Not Yet Published |
| Cornell University | 88.2% | 89.3% | 91.6% | 94.8% | 95.3% | 100% |
| Dartmouth College | 85.8% | 84.5% | 84.2% | 94% | 95% | 96% |
| Harvard University | 86.3% | 86.8% | 65.9% | 96.7% | 97.8% | 98% |
| Princeton University | 89.5% | 88.1% | Not Yet Published | 97.6% | 97.5% | Not Yet Published |
| University of Pennsylvania | 89.2% | 87.7% | Not Yet Published | 96.2% | 96.1% | Not Yet Published |
| Yale University | 87.7% | 88.1% | 66.1% | 96.9% | 97.8% | 96.3% |
